AMD XC2S15-5VQG100C

Overview

XC2S15-5VQG100C from AMD (formerly Xilinx) is a Spartan-II family FPGA with 15,000 system gates, 176 logic cells, 176 configurable logic blocks (CLBs), 100-pin VQFP package, and 5 ns maximum input-to-output delay. It targets low-cost, high-volume embedded control and interface bridging applications.

For engineers reviewing the XC2S15-5VQG100C datasheet, pinout, applications, or equivalent options, key selection criteria include I/O count (84 user I/Os), voltage supply (3.3 V core & I/O), configuration mode (JTAG/Slave Serial), and industrial temperature range (0°C to 85°C).

Technical Context

The XC2S15-5VQG100C implements a hierarchical architecture with CLBs containing two 4-input LUTs and flip-flops, distributed RAM (16 bits per CLB), and dedicated carry logic for arithmetic. It supports SelectI/O standards including LVTTL, LVCMOS, and PCI.

Configuration is performed via JTAG boundary-scan or serial PROM; internal configuration memory retains state only while powered. No on-chip oscillator or PLL is integrated - clock management requires external sources or routing through global clock buffers.

Key Specifications

Pinout & Package

XC2S15-5VQG100C uses a 100-pin Very Thin Quad Flat Pack (VQFP) with 0.5 mm pitch, 14 × 14 mm body size, and exposed pad for thermal dissipation. Pinout conforms to Xilinx Spartan-II VQ100 footprint standard.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar FPGA-based logic integration applications.

Compared with XC2S15-5VQG100C, XC2S25-5VQG100C offers scalable logic density within identical mechanical and electrical constraints, while XCR3256XL-10VQ100C trades reconfigurability for deterministic timing and instant-on operation - critical for safety-critical boot sequencing.

Availability

XC2S15-5VQG100C is available at Aetrix Electronics and suitable for industrial control, test equipment, and legacy interface bridging requiring stable component supply and long-term obsolescence management.

Supply support for XC2S15-5VQG100C includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

AMD acquired Xilinx in 2022 and maintains legacy Spartan-II product support, documentation, and cross-reference compatibility for industrial and aerospace customers.

The Spartan-II family was designed for cost-sensitive, high-volume applications requiring moderate logic density, flexible I/O standards, and JTAG-programmable reconfiguration - especially in industrial automation and communications infrastructure.

FAQ

What is the configuration method supported by XC2S15-5VQG100C?

The XC2S15-5VQG100C supports JTAG boundary-scan and Slave Serial configuration modes. JTAG enables in-circuit programming and debugging, while Slave Serial allows loading bitstreams from external PROM or microcontroller. No internal configuration memory is retained after power loss - configuration must be reloaded at each power-up. The XC2S15-5VQG100C does not support Master Serial or MicroBlaze-based configuration.

Does XC2S15-5VQG100C include an integrated PLL or clock multiplier?

No, the XC2S15-5VQG100C does not contain an integrated PLL, DLL, or clock multiplier. Clock distribution relies on four global low-skew clock networks driven by external oscillators or clock generators. Timing-critical designs must manage skew and jitter externally. This differs from later Spartan-3 and Virtex families, which added dedicated clock management tiles. The XC2S15-5VQG100C requires external clock conditioning for frequency synthesis.

What I/O standards are compatible with XC2S15-5VQG100C?

The XC2S15-5VQG100C supports LVTTL, LVCMOS (3.3 V and 2.5 V), and PCI I/O standards. Each I/O bank can be independently configured for voltage level and drive strength. Slew rate control and weak pull-up resistors are programmable per pin. It does not support differential standards like LVDS or RSDS, nor low-voltage standards below 2.5 V such as SSTL or HSTL. The XC2S15-5VQG100C is not compatible with 1.8 V or 1.5 V I/O interfaces.

Is XC2S15-5VQG100C suitable for automotive applications?

No, the XC2S15-5VQG100C is rated for commercial and industrial temperature ranges (0°C to 85°C) and is not qualified to AEC-Q100 or ISO/TS 16949 standards. It lacks automotive-grade screening, extended temperature operation (−40°C to 125°C), and enhanced ESD/latch-up immunity required for vehicle ECUs. For automotive use, designers should consider Xilinx Spartan-6 Automotive or AMD Kintex-7 Automotive derivatives instead of the XC2S15-5VQG100C.

Can XC2S15-5VQG100C be reprogrammed in-system after soldering?

Yes, the XC2S15-5VQG100C supports full in-system programming (ISP) via its IEEE 1149.1 JTAG interface. No socket or UV erasure is needed - bitstream updates can be performed directly on the assembled PCB using standard JTAG adapters. Configuration memory is volatile, so the XC2S15-5VQG100C reloads on every power cycle, making it safe for field firmware upgrades without hardware modification.